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THe 71s electron of an element X with an atomic  number of 71 enters into the orbital:

  • Option 1)

    6p

  • Option 2)

    5d

  • Option 3)

    4f

  • Option 4)

    6s

Answers (1)

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Aufbau Principle -

In the ground state of the atoms, the orbitals are filled in order of their increasing energies.

- wherein

 

 

Pauli Exclusion Principle -

“No two electrons in an atom can have the same set of four quantum number" .

-

 

 

Hund’s Rule of Maximum Multiplicity -

"pairing of electrons in the orbitals belonging to the same subshell ( p,d or f ) does not take place until each orbital belonging to that subshell has got one electron each i.e.,It is singly occupied.”

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As we have learned in MOT

The 71st electron will having an atomic number 71 will enter in 4F


Option 1)

6p

Option 2)

5d

Option 3)

4f

Option 4)

6s

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